福建农业学报2017，Vol.32Issue(7)：715-718,4.DOI:10.19303/j.issn.1008-0384.2017.07.005
鹤望兰新株系耐寒性鉴定
Low-temperature Tolerance of a New Variety of Strelitzia reginae
摘要
Abstract
A newly bred strain of Strelitzia reginae showed superior resistance to the cold weather in Fuzhou as compared to its parent.To quantifiably verify the observation,relative electric conductivities of the leaves and semilethal temperatures (LT50) of the two cultivars were determined.LT50 was calculated using a logistic equation at a temperature gradient from 0,-2,-3,-4,-5 to-6.The results showed that the conductivities significantly increased with decreasing temperature in an S-shape function.And,the LT50 of the new strain was-4.8,which was considerably lower than that of its counterpart,at-3.6.关键词
鹤望兰/抗寒性/相对电导率/半致死温度Key words
Strelitzia reginae/low-temperature tolerance/relative electric conductivity/semi-lethal temperature分类
农业科技引用本文复制引用
樊荣辉,黄敏玲,林兵,钟淮钦..鹤望兰新株系耐寒性鉴定[J].福建农业学报,2017,32(7):715-718,4.基金项目
福建省科技计划项目——省属公益类科研院所基本科研专项(2015R1026-2) （2015R1026-2）
福建省农业科学院创新团队PI项目(2016PI-40) （2016PI-40）
福建省农业科学院科技创新项目(PC2017-2) （PC2017-2）
